Well I don't even want to discuss about Dev and his mother because they are totally useless. Like someone rightly said, Dev, in his senses can never speak non-sense to his mom. He might feel a 1000 things in his mind but he somehow manages to bottle them up and speak in a manner which pleases her. Its these bottled up emotions that are going to play havoc on the engagement day when he comes home drunk. I don't know if he would remember all this the next day but yes, a drunk Dev blasting Ishwari was very much necessary.
Coming to Sonakshi, yes she wanted to somehow come out of the break-up. Maybe she wanted to tell Dev not to take her for granted and so what if he left her, she had many suitors waiting at her door. Or she wanted to ensure her parents were happy. Whatever the reason, it seems to be fading away. Time is the best healer. With time, the initial anger has gone and has been replaced by why, what, how etc. But its too late in the game and she finds herself staring at her own engagement with someone whom she met a couple of days ago and clearly does not still love him. So that restlessness at not being able to do anything to forget Dev or move out of this engagement mess is going to catch up with her.
We all feel the Boses have been very supportive. Well I think they should have waited for the anger to subside before pushing Sonakshi into another relationship. If this engagement does break, the Sens have every right to be angry at the Boses and insult them for making a mockery of them in front of their guests.
If the engagement is not called off, I am not sure how they are going to take this track further.